Camera module

ABSTRACT

An exemplary embodiment of the present invention includes a PCB (Printed Circuit Board) mounted with an image sensor, a holder member mounted at the PCB to support a lens module, movable lens concentrically arranged with the lens module, a first actuator compensating movement of an image captured by the image sensor by moving the movable lens, and a gyro sensor unit integrally formed with the first actuator to detect rotation of trajectory in response to movement of an electronic device mounted with the camera module.

CROSS-REFERENCE TO RELATED APPLICATIONS

This application is a Continuation of copending U.S. application Ser.No. 14/427,254, filed on Mar. 10, 2015, which is a National Stage ofInternational Application No. PCT/KR2013/000733 filed on Jan. 30, 2013,which claims priority under 35 U.S.C. §119(a) to Application No.10-2012-0103939, filed in the Republic of Korea on Sep. 19, 2012, all ofwhich are hereby expressly incorporated by reference into the presentapplication.

TECHNICAL FIELD

The teachings in accordance with exemplary and non-limiting embodimentsof this invention relate generally to a camera module.

BACKGROUND ART

Recently, small-sized camera modules are highly demanded in a variety ofmultimedia fields, such as tablet computers, camera phones, PDAs(Personal Digital Assistants), smart phones, and toys, and image inputdevices, such as monitoring cameras and information terminals of videotape recorders. Particularly, trends are to develop miniaturized cameramodules for smart phones in response to increased demands by consumerspreferring a small-sized design.

The camera module is manufactured using an image sensor such as a chargecoupled device (CCD) or a complementary metal oxide semiconductor(CMOS), where light of an object is concentrated through a lens to theimage sensor, and an optical signal is converted into an electricalsignal for display on a display unit such as an LCD display device.Meanwhile, smart phones are generally mounted with various detectionsensors capable of variably detecting motions of a user.

However, in order to install a gyro sensor as a separate detectionsensor, a separate space is required, and the installation of anadditional space unit for the gyro sensor in portable electronic devicessuch as smart phones is cumbersome.

DISCLOSURE OF INVENTION Technical Problem

Accordingly, it is an object of the present invention to provide astructurally improved camera module capable of being packaged thereinalong with a gyro sensor.

Solution to Problem

In order to accomplish the above object, in one general aspect of thepresent invention, there is provided a camera module, the camera modulecomprising: a PCB (Printed Circuit Board) mounted with an image sensor;a holder member mounted at the PCB to support a lens module; movablelens concentrically arranged with the lens module; a first actuatorcompensating movement of an image captured by the image sensor by movingthe movable lens; and a gyro sensor unit integrally formed with thefirst actuator to detect rotation of trajectory in response to movementof an electronic device mounted with the camera module.

Preferably, but not necessarily, the first actuator may include a firstmovable unit supporting the movable lens, and the first movable unit andthe gyro sensor unit may be conductibly connected via a first connectionmember.

Preferably, but not necessarily, the first connection member may beformed with any one material of gold material and conductive material.

Preferably, but not necessarily, the gyro sensor unit may include a bodycentrally formed with a through hole, a plurality of sensing lugsprotrusively formed at a periphery of the body, and a sensing unitarranged at a surface corresponding to the plurality of sensing lugs.

Preferably, but not necessarily, the through hole may be formed with adiameter greater than a diameter of the lens module.

Preferably, but not necessarily, the body may be provided in a shape ofa ring and centrally formed with the through hole.

Preferably, but not necessarily, at least four (4) sensing lugs may beformed at the periphery of the body.

Preferably, but not necessarily, the plurality of sensing lugs may bediscretely arranged each at a predetermined same distance.

Preferably, but not necessarily, the sensing unit may be arrangedopposite to at least two surfaces of the sensing lugs.

Preferably, but not necessarily, the sensing unit may be conductivelyconnected to the PCB.

Preferably, but not necessarily, the first actuator may be arranged atany one of an upper surface of the holder member, and between the holdermember and the PCB.

In another general aspect of the present invention, there is provided acamera module, the camera module comprising: a PCB (Printed CircuitBoard) mounted with an image sensor; a holder member mounted at the PCBto support a lens module; movable lens concentrically arranged with thelens module; a second actuator adjusting a focus of an image captured onthe image sensor by moving the movable lens; and an acceleration sensorunit integrally formed with the second actuator to detect accelerationin response to movement of an electronic device mounted with the cameramodule.

Preferably, but not necessarily, the second actuator may include asecond movable unit supporting the movable lens, and the second movableunit and the acceleration sensor unit are conductibly connected via asecond connection member.

Preferably, but not necessarily, the second connection member may beformed with any one material of gold material and conductive material.

Preferably, but not necessarily, the acceleration sensor unit mayinclude a ring-shaped body centrally formed at the acceleration sensorunit and formed with a diameter greater than a diameter of the lensmodule, a plurality of sensing lugs, at least four (4) sensing lugsdiscretely arranged at a periphery of the body, each at a predeterminedsame distance, and a sensing unit arranged at a position correspondingto that of the plurality of sensing lugs and arranged opposite to atleast two (2) surfaces of the sensing lugs.

In another general aspect of the present invention, there is provided acamera module, the camera module comprising: a PCB (Printed CircuitBoard) mounted with an image sensor; a holder member mounted at the PCBto support a lens module; movable lens concentrically arranged with thelens module; a first actuator compensating shake of an image captured bythe image sensor by moving the movable lens; and a gyro sensor unitintegrally formed with the first actuator to detect rotation oftrajectory in response to movement of an electronic device mounted withthe camera module, a second actuator adjusting a focus of an imagecaptured on the image sensor by moving the movable lens; and anacceleration sensor unit integrally formed with the second actuator todetect acceleration in response to movement of an electronic devicemounted with the camera module.

Advantageous Effects of Invention

A camera module according to an exemplary embodiment of the presentinvention has an advantageous effect in that a gyro sensor can bepackaged along with an actuator of the camera module to install the gyrosensor on an electronic device without increasing volume of the cameramodule.

Another advantageous effect is that the actuator and the gyro sensor areso arranged as to share a wiring to simplify a wiring structure.

BRIEF DESCRIPTION OF DRAWINGS

FIG. 1 is a schematic view illustrating a configuration of a cameramodule according to a first exemplary embodiment of the presentinvention.

FIG. 2 is an enlarged view illustrating a first actuator of FIG. 1.

FIG. 3 is a schematic plane view illustrating a gyro sensor unit of FIG.2.

FIG. 4 is a schematic view illustrating a configuration of a cameramodule according to a second exemplary embodiment of the presentinvention.

FIG. 5 is a schematic view illustrating a configuration of a cameramodule according to a third exemplary embodiment of the presentinvention.

FIG. 6 is an enlarged view illustrating a second actuator of FIG. 5.

FIG. 7 is a schematic plane view illustrating an acceleration sensorunit of FIG. 5.

FIG. 8 is a schematic view illustrating a configuration of a cameramodule according to a fourth exemplary embodiment of the presentinvention.

BEST MODE FOR CARRYING OUT THE INVENTION

Now, the camera module according to exemplary embodiments of the presentinvention will be described in detail with reference to the accompanyingdrawings.

FIG. 1 is a schematic view illustrating a configuration of a cameramodule according to a first exemplary embodiment of the presentinvention, FIG. 2 is an enlarged view illustrating a first actuator ofFIG. 1, FIG. 3 is a schematic plane view illustrating a gyro sensor unitof FIG. 2, FIG. 4 is a schematic view illustrating a configuration of acamera module according to a second exemplary embodiment of the presentinvention, FIG. 5 is a schematic view illustrating a configuration of acamera module according to a third exemplary embodiment of the presentinvention, FIG. 6 is an enlarged view illustrating a second actuator ofFIG. 5, FIG. 7 is a schematic plane view illustrating an accelerationsensor unit of FIG. 5, FIG. 8 is a schematic view illustrating aconfiguration of a camera module according to a fourth exemplaryembodiment of the present invention.

FIG. 1 is a schematic view illustrating a configuration of a cameramodule according to a first exemplary embodiment of the presentinvention.

Referring to FIG. 1, the camera module may include a PCB (10), a holdermember (20), a movable lens (30) and a first actuator (100).

The PCB (10) may be mounted at an approximate center thereof with animage sensor (11), and may be also mounted at a surface with acontroller reading out image information and outputting data on theimage sensor (11) and the first actuator (100) and a control signal. Atthis time, the PCB (10) may supply the control signal and the power tothe first actuator (100) by being directly connected to an electroniccircuit pattern layer formed at the holder member (20), and may alsosupply the control signal and the power to the first actuator (100) bybeing connected to a separate wiring member.

The holder member (20) may be arranged at an upper surface of the PCB(10) and a lens module (21) formed with at least one or more sheets oflenses may be coupled to an interior of the holder member (20). The lensmodule (21) may be screw-coupled to an interior of the holder member(20) or may be fixed to the interior of the holder member (21) using anadhesive. The holder member (20) may be installed with the firstactuator (100) for automatically adjusting a focus of an image capturedon the image sensor (11), may be arranged at an upper surface of thelens module (21) as shown in FIG. 1, or may be arranged at a bottomsurface of the lens module (21) between the lens module (21) and theimage sensor (11) as illustrated in FIG. 4.

Furthermore, the holder member (20) may be formed at a surface thereofwith an electronic circuit pattern layer (not shown) conductiblyconnecting the first actuator (100) to the PCB (10) or may be providedwith a separate wiring member. The electronic circuit pattern layer maybe so formed as to have a wiring pattern on the surface, may beinstalled at any one or more places of a lateral wall, an upper surfaceor a bottom surface of the holder member (20), or may be installed atthe lateral wall, the upper surface and the bottom surface at the sametime. The electronic circuit pattern layer may be formed using so-calledMID (Molded Interconnect Device) technology. The wiring member may be aCF-PCB or a flexible cable, where one end may be connected to the PCB(10), and the other end may be connected to the first actuator (100).

The movable lens (30) may perform an auto focusing function byvertically moving relative to an optical axis by the first actuator(100), or may perform handshake compensation function by tilting orshifting operation. Alternatively, the movable lens may be formed withan optically transmissive material such as silicon or similar material,or thickness of the movable lens may be variably formed by the firstactuator (100). In this case, a refractive index of light passing themovable lens (30) may be adjusted to perform the auto focusing functionor the handshake compensation function.

The first actuator (100) serves to accurately control a focus of animage captured by the image sensor (11) or the shake by providing amotion to the movable lens (30), and may include, according to anexemplary embodiment of the present invention, a first movable unit(110), a gyro sensor unit (120) and a first connection member (130) asillustrated in FIG. 2.

The first movable unit (110) may be coupled to the movable lens (30) tocompensate an image instability or error caused by handshake by shiftingthe movable lens (30) to a horizontal direction relative to an opticalaxis, or by tilting the movable lens (30) at a predetermined anglerelative to the optical axis. The first movable unit (110) may beprovided in various configurations and may be provided in a form of ahandshake compensation unit according to an exemplary embodiment of thepresent invention. The first movable unit (110) may be fixedly installedat an upper surface of the holder member (20). However, the presentinvention is not limited thereto, and the installation position of thefirst movable unit (110) may be changed depending on design of thecamera module.

The first movable unit (110) may be also configured to implement autofocusing function, zoom function and shutter function in addition to thehandshake compensation function. The first movable unit (110) may bereplaced by any actuator controllable of one sheet of lens like anactuator using a piezoelectric polymer moved by electrostatic force orpiezoelectric force. By way of non-limiting example, the actuator may bereplaced by any one of a silicon type actuator, a liquid actuator, orany actuator alone, or in combination with each other.

Referring to FIGS. 2 and 3, the gyro sensor unit (120) may be providedto form a one-bodied first actuator (100) by the first movable unit(110) and the first connection member (130) being conductibly connected.Referring to FIG. 3, the gyro sensor unit (120) may include aring-shaped body (121) centrally formed with a through hole (125), asensing lug (122) protrusively formed to all directions of the body(121) and a pair of sensing units (123) arranged in opposition to thesensing lug (122). At this time, the sensing lug (122) and the sensingunit (123) may be provided in a plural number, and as illustrated inFIG. 3, four (4) sensing lugs (122) may be arranged each at a 90°interval, and the sensing unit (123) may be arranged at a positioncorresponding to that of the sensing lug (122).

Referring to FIGS. 2 and 3 again, a diameter (D) of the through hole(125) may be greater than a diameter (d) of the movable lens (30) toprevent the through hole (125) from being interfered by light passingthe movable lens (30).

Furthermore, a center of the through hole (125) and a center of themovable lens (30) may be concentrically arranged, which is to preventthe movable lens (30) from being shaded by the body (121) of the gyrosensor unit (120) integrally formed with the first actuator (100)coupled to the camera module in response to motion of the camera module.That is, in a case the body (121) is moved, an angle of trajectory isdetected by detecting the sensing lug (122) and the sensing unit (123)being distanced or being approached. At this time, in a case the centerof the through hole (125) and the center of the movable lens (30) failto be concentrically arranged, the body (121) may shade a part of themovable lens (30).

The first connection member (130) serves to conductibly connect thefirst actuator unit (110) to the gyro sensor unit (120), and may beformed with a gold material or a conductive material according to anexemplary embodiment of the present invention. The first connectionmember (130) connects an electronic circuit of the movable lens (30) toan electronic circuit of the gyro sensor unit (120) to allow beingdirectly connected to the PCB (10) dispensing with a separate wiringmember, whereby a power may be supplied to the gyro sensor unit (120)installed inside the first actuator (100) or a control signal may bereceived or transmitted without increasing the volume of the cameramodule. Generally, an electronic circuit pattern is formed on each ofthe first movable unit (110) and the gyro sensor unit (120) for drivingthe first movable unit (110) and the gyro sensor unit (120), such that,in a case a pattern is further added to the existing electronic circuitpattern for mutual power supply and application of control signal, thepower and control signal can be supplied via connection between theelectronic circuit pattern and the additional pattern without a separatewiring member.

FIG. 4 is a schematic view illustrating a configuration of a cameramodule according to a second exemplary embodiment of the presentinvention.

The configuration of a camera module illustrated in FIG. 4 is no bigdifference from that of the first exemplary embodiment of the presentinvention, except that the first actuator (100) may be arranged at aspace unit between the holder member (20) and the PCB (10), the gyrosensor unit (120) may be fixed to a floor surface of the holder member(20) and the first movable unit (110) supporting the movable lens (30)may be arranged thereunder. Other configurations and operations are thesame as those of the first exemplary embodiment of the presentinvention.

In the above configuration according to the second exemplary embodimentof the present invention, the first actuator (100) mounted on a cameramodule is configured with the first movable unit (110) along with thegyro sensor unit (120) recommended in installation for an accurateoperation control in a portable electronic device such as a smart phone,whereby there is no need of forming a separate space unit for installingthe gyro sensor unit (120) on the electronic device mounted with thecamera module. Furthermore, a process of installing the gyro sensor unit(120) is eliminated and only a configuration of installing the cameramodule is needed to allow installing the camera module and the gyrosensor unit (120) at one time, whereby productivity can be enhanced andassembly badness can be minimized.

FIG. 5 is a schematic view illustrating a configuration of a cameramodule according to a third exemplary embodiment of the presentinvention.

The configuration of a camera module illustrated in FIG. 5 is same asthat of the second exemplary embodiment of the present invention, exceptthat the first actuator (100, see FIG. 1) is changed to a secondactuator (200).

The second actuator (200) is an auto focusing unit providing a motion tothe movable lens (30) to adjust a focus of an image captured by theimage sensor (11), and may include a second movable unit (210), anacceleration sensor unit (220) and a second connection member (230) asillustrated in FIG. 6.

The second movable unit (210) may be coupled to the movable lens (30) tomove the movable lens (30) to a direction parallel with the opticalaxis, whereby a focus can be adjusted. The second movable unit (210) maybe fixedly installed at an upper surface of the holder member (20).However, the present invention is not limited thereto, and theinstallation position of the second movable unit (210) may be variablychanged depending on design of the camera module. The second movableunit (210) may be also configured to implement auto focusing function,zoom function and shutter function in addition to the handshakecompensation function. The second movable unit (210) may be replaced byany actuator controllable of one sheet of lens like an actuator using apiezoelectric polymer moved by electrostatic force or piezoelectricforce. By way of non-limiting example, the actuator may be replaced byany one of a silicon type actuator, a liquid actuator, or any actuatoralone, or in combination with each other.

The acceleration sensor unit (220) may be formed in the sameconfiguration as that of the gyro sensor unit (120) illustrated in FIG.3, and may be provided to form a one-bodied second actuator (200) by thesecond movable unit (210) and the second connection member (230) beingconductibly connected. The acceleration sensor unit (220) functions tooutput a magnitude of acceleration applied to an object, and may bedivided into different types depending on the number of axis, e.g., oneaxis, two axes and three axes, where a 3-axis acceleration sensor havinga 3-axis direction as a detection range may measure acceleration in a 3D(Dimensional) space of a 3-axis direction of x axis, y axis and z axis.That is, the 3-axis acceleration sensor can detect a motion of an objectusing an inclined angle of the object and acceleration of each directionbased on gravitational acceleration. The acceleration sensor unit (220)capable of detecting the 3-axis directions may be configured fordetecting an inclined angle of an electric device, e.g., a portablephone, mounted on a camera module according to an exemplary embodimentof the present invention.

The acceleration sensor unit (220) may be configured by piezo-resistiveresistance or capacitive accelerometer, and the acceleration sensor unit(220) configured by the capacitive accelerometer is exemplified in theexemplary embodiment of the present invention. The acceleration sensorunit (220) configured by the capacitive accelerometer is configured suchthat a balance weight is centrally arranged between a plurality ofelectrodes, and in a case there is no acceleration, the balance weightis positioned in the center, and in a case there is applied withacceleration, the balance weight is moved from the center to an oppositeelectrode to measure acceleration using a current value generated bydifference of electrostatic capacity.

That is, the acceleration sensor unit (220) acting responsive to thebalance weight as illustrated in FIG. 7 may include a ring-shaped body(221) centrally formed with a through hole, a sensing lug (222)protrusively formed to all directions of the body (221) and a pair ofsensing units (223) arranged in opposition to the sensing lug (222) toact as an electrode. At this time, the sensing lug (222) and the sensingunit (223) may be provided in a plural number, and as illustrated inFIG. 7, four (4) sensing lugs (222) may be arranged each at a 90°interval, and the sensing unit (223) may be arranged at a positioncorresponding to that of the sensing lug (222).

Referring to FIGS. 6 and 7, a diameter (D) of the through hole (225) maybe greater than a diameter (d) of the movable lens (30) to prevent thethrough hole (225) from being interfered by light passing the movablelens (30).

Furthermore, a center of the through hole (225) and a center of themovable lens (30) may be concentrically arranged, which is to preventthe movable lens (30) from being shaded by the body (221) of theacceleration sensor unit (220) integrally formed with the secondactuator (200) coupled to the camera module in response to motion of thecamera module. That is, in a case the body (221) is moved, an angle oftrajectory is detected by detecting the sensing lug (222) and thesensing unit (223) being distanced or being approached. At this time, ina case the center of the through hole (225) and the center of themovable lens (30) fail to be concentrically arranged, the body (221) mayshade a part of the movable lens (30) as the body (221) is moved.

The second connection member (230) serves to conductibly connect thesecond actuator unit (210) to the acceleration sensor unit (220), andmay be formed with a gold material or a conductive material according toan exemplary embodiment of the present invention. The second connectionmember (230) connects an electronic circuit of the second movable unit(210) to an electronic circuit of the acceleration sensor unit (220) toallow being directly connected to the PCB (10) dispensing with aseparate wiring member, whereby a power may be supplied to theacceleration sensor unit (220) installed inside the second actuator(200) or a control signal may be received or transmitted withoutincreasing the volume of the camera module. Generally, an electroniccircuit pattern is formed on each of the second movable unit (210) andthe acceleration sensor unit (220) for driving the second movable unit(210) and the acceleration sensor unit (220), such that, in a case apattern is further added to the existing electronic circuit pattern formutual power supply and application of control signal, the power andcontrol signal can be supplied via connection between the electroniccircuit pattern and the additional pattern without a separate wiringmember.

FIG. 8 is a schematic view illustrating a configuration of a cameramodule according to a fourth exemplary embodiment of the presentinvention.

The configuration of a camera module illustrated in FIG. 8 is no bigdifference from that of the second exemplary embodiment of the presentinvention, except that the second actuator (200) may be arranged at aspace unit between the holder member (20) and the PCB (10), theacceleration sensor unit (220) may be fixed to a floor surface of theholder member (20) and the second movable unit (210) supporting themovable lens (30) may be arranged thereunder. Other configurations andoperations are the same as those of the third exemplary embodiment ofthe present invention.

In the above configuration according to the fourth exemplary embodimentof the present invention, the first actuator (100) mounted on a cameramodule may be configured with the first movable unit (110) performinghandshake compensation function along with the gyro sensor unit (120)recommended in installation for an accurate operation control in aportable electronic device such as a smart phone, and the secondactuator (200) may be configured with the acceleration sensor unit (220)along with the second movable unit (210) performing the auto focusingfunction, whereby there is no need of forming a separate space unit forinstalling the gyro sensor unit (120) or the acceleration sensor unit(220) on the electronic device mounted with the camera module.

Particularly, in case of requiring a handshake compensation function,the first actuator (100) is installed as in the first and secondexemplary embodiments, and in case of requiring posture differencecompensation, the second actuator (200) is installed as in the third andfourth exemplary embodiments, whereby the handshake compensationfunction or the posture difference compensation of an electronic devicecan be provided only with the installation of a camera module.

Furthermore, a process of installing the gyro sensor unit (120) or theacceleration sensor unit (220) is eliminated and only a configuration ofinstalling the camera module is needed to allow installing the cameramodule and the gyro sensor unit (120) or the acceleration sensor unit(220) at one time, whereby productivity can be enhanced and assemblybadness can be minimized.

Meanwhile, although the first and second exemplary embodiments haveexplained and described the first actuator (100) integrally formed withthe gyro sensor unit (120), and the third and fourth exemplaryembodiments have explained and described the second actuator (200)integrally formed with the acceleration sensor unit (220), the presentinvention is not limited thereto. By way of non-limiting example, albeitnot being illustrated, according to a fifth exemplary embodiment of thepresent invention, the first and second actuators (100, 200) accordingto the first to fourth exemplary embodiments may be configured in oneunit to implement the handshake compensation function and the autofocusing function at the same time. In this case, it is possible tointegrally form the first actuator (100) with the acceleration sensorunit (220), and to integrally form the second actuator (200) with thegyro sensor unit (120).

The previous description of the present invention is provided to enableany person skilled in the art to make or use the invention. Variousmodifications to the invention will be readily apparent to those skilledin the art, and the generic principles defined herein may be applied toother variations without departing from the spirit or scope of theinvention. Thus, the invention is not intended to limit the examplesdescribed herein, but is to be accorded the widest scope consistent withthe principles and novel features disclosed herein.

INDUSTRIAL APPLICABILITY

The camera module according to exemplary embodiments of the presentinvention has an industrial applicability in that it can be applied to acamera module mounted at small electronic devices such as a mobileterminal and a tablet PC.

1. A camera module, the camera module comprising: a PCB (Printed CircuitBoard) mounted with an image sensor; a holder member disposed on anupper surface of the PCB; a lens module coupled with the holder member;and an actuator disposed on an upper surface of the holder member,wherein the actuator comprises a sensor unit configured to detectmovement of an electronic device mounted with the camera module and aliquid lens coupled with the sensor unit and configured to compensatemovement of an image captured by the image sensor.
 2. The camera moduleof claim 1, wherein the sensor unit comprises a body centrally formedwith a through hole, a plurality of sensing lugs protrusively formed ata periphery of the body and a sensing unit arranged at a positioncorresponding to that of the plurality of sensing lugs.
 3. The cameramodule of claim 2, wherein the through hole is formed with a diametergreater than a diameter of the lens module.
 4. The camera module ofclaim 2, wherein the body is provided in a shape of a ring and centrallyformed with the through hole.
 5. The camera module of claim 2, whereinat least four sensing lugs are formed at the periphery of the body. 6.The camera module of claim 5, wherein the four sensing lugs arediscretely arranged each at a predetermined same distance.
 7. The cameramodule of claim 2, wherein the sensing unit is arranged opposite to atleast two surfaces of the sensing lugs.
 8. The camera module of claim 2,wherein the sensing unit is conductively connected to the PCB.
 9. Thecamera module of claim 2, wherein the sensor unit is any one of a gyrosensor unit and an acceleration sensor unit.
 10. The camera module ofclaim 1, wherein the sensor unit and the liquid lens are coupled by aconnection member, and wherein the connection member is formed with anyone material of gold material and conductive material.
 11. A cameramodule, the camera module comprising: a PCB (Printed Circuit Board)mounted with an image sensor; a holder member disposed on an uppersurface of the PCB; a lens module coupled with the holder member; and anactuator disposed on an upper surface of the holder member, wherein theactuator comprises a sensor unit configured to detect movement of anelectronic device mounted with the camera module and a liquid lenscoupled with the sensor unit and configured to adjust a focus of animage captured on the image sensor.
 12. The camera module of claim 11,wherein the sensor unit comprises a body centrally formed with a throughhole, a plurality of sensing lugs protrusively formed at a periphery ofthe body and a sensing unit arranged at a position corresponding to thatof the plurality of sensing lugs.
 13. The camera module of claim 12,wherein the through hole is formed with a diameter greater than adiameter of the lens module.
 14. The camera module of claim 12, whereinthe body is provided in a shape of a ring and centrally formed with thethrough hole.
 15. The camera module of claim 12, wherein at least foursensing lugs are formed at the periphery of the body.
 16. The cameramodule of claim 15, wherein the four sensing lugs are discretelyarranged each at a predetermined same distance.
 17. The camera module ofclaim 12, wherein the sensing unit is arranged opposite to at least twosurfaces of the sensing lugs.
 18. The camera module of claim 12, whereinthe sensing unit is conductively connected to the PCB.
 19. The cameramodule of claim 12, wherein the sensor unit is any one of a gyro sensorunit and an acceleration sensor unit.
 20. The camera module of claim 11,wherein the sensor unit and the liquid lens are coupled by a connectionmember, and wherein the connection member is formed with any onematerial of gold material and conductive material.